Alternator: Service and Repair

12 31 020 - Removing and installing or replacing alternator (S85)





Necessary preliminary tasks:
- Switch off ignition
- Follow instructions for disconnecting and connecting battery Instructions for Disconnecting and Connecting Battery
- Disconnect battery negative lead Disconnecting and Connecting Battery Negative Lead and cover
- Remove radiator
- Remove alternator drive belt Replacing Alternator Drive Belt.





Unfasten screws.
Carefully press leads (1) to one side.





Unfasten screws.
Pull alternator (1) forwards until connections are accessible.





Unlock plug (1) and remove.
Release nut (2), remove battery positive lead from alternator.
Tightening torque 12 31 1AZ [1][2]Specifications.
Remove alternator (3).